Gearing for fertilizer-distributers.



PATENTED MAY 31, 1904.

J. s. KEMP. GEARING FOR FERTILIZER DISTRI-BUTBRS.

I APPLICATION FILED AUG. 5, 1903.

N0 MODEL.

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Patented May 31, 1904.

PATENT OF ICE.

JOSEPH SARGENT KEMP, OF NE'WARK VALLEY, NEW YORK.

GEARING FOR FERTILIZER-DISTRIBUTERS- SPECIFICATION forming part ofLetters Patent No. 761,234, dated May 31, 1904.

Application filed g s 5, 1903.

To all whom it may concern:

Be it known that I, JOSEPH SARGENT KEMP, a citizen of the United States,and a resident of Newark Valley, in the county of Tioga and State of NewYork, have invented a new and useful Improvement in Gearing forFertilizer- Distributers, of which the following is a specification.

This invention relates to that class of fer tilizer-distributers ormanure-spreaders which embody a box or body mounted on a wheeled framefor containing the fertilizer or manure, a beater at the rear end of thebox or body, a movable apron or other feed device by which the materialis fed against the beater, and a Worm mechanism by which the apron ofthe feed device is driven from the rear axle. This worm mechanismusually containsa disk gear- .Wheel which has several concentric gearrims or faces of different diameters and a longitudinal worm-shaft onwhich a pinion is mounted which is driven from this wheel. For changingthe speed of the apron and the rate at which the material is distributedby the beater it is necessary to shift the pinion on the worm-shaft soas-to engage the pinion with a larger or smaller gear-face on thedriving. gear-wheel.

The object of this invention is to improve this feed mechanism by soconstructing the same that the pinion can be uncoupled from theworm-shaft before the pinion is shifted on the shaft. This permits thepinion to re; volve freely on the shaft during the operation of engagingthe pinion with a different gearface and prevents injury to the parts ifthe pinion should strike with its teeth against the ends of the teeth ofthe gear-face instead of entering with its teeth in the spaces betweenthe teeth of the gear-face.

In the accompanying drawings, Figure 1 is a side elevation of amanure-spreader provided with my improvements. Fig. 2 is a longitudinalsectional elevation of the worm mechanism, on an enlarged-scale. Fig. 3is a horizontal section of the same in line 3 8, Fig. 2. Fig. 4 is a topplan View of the worm-shaft and the parts mounted thereon. Fig. 5 is aSerial No. 168,312. (No model.)

face elevation of the disk gear-wheel. Fig. 6 is a top plan view of thenotched bar or segment in which the hand-levers are arranged.

Like letters of reference refer to like parts in the several figures.

A represents the body or box of a manurespreader; a, the frame thereof;B, the beater; 0, the transverse rear shaft by which the bottom or apron(not shown) is driven, and C the worm-wheel on said shaft.

d represents the rear axle, and D one of the rear wheels. E representsthe pinion which is secured to the rear axle for driving the feedmechanism.

F represents the disk wheel, which has a peripheral gear-rim f meshingwith the pinion E and is provided on its inner side with severalconcentric gear rims or faces f f 2 f 3 of different diameters. Thisdisk wheel may turn on a horizontal stud g, which is secured to theframe a of the machine and which carries on the inner side of the diskwheel a bearing it, or the disk wheel may be mounted in any othersuitable manner.

irepresents the longitudinal worm-shaft, which is journaled at its frontend in thebearing h and carries at its rear end the worm I, which mesheswith the worm-wheel C. The Wormshaft is journaled near its rear end in abearing 70, which can be raised or lowered by a segment is, rod andhand-lever k for throwing the worm out of or into gear. All of theseparts may be of any ordinary or suitable construction.

L represents the pinion which is mounted on the Worm-shaft and adaptedto be engaged with one of the gear-faces f f f of the disk-wheel F. Thispinion is mounted loosely on the worm-shaft so that it can be movedlengthwise on the same and is not directly coupled to the shaft fordriving the same, but free to turn loosely thereon. This pinion isprovided on its rear side with a clutch-face Z,

which is adapted to engage a corresponding clutch-face m at the frontend of a driving or coupling sleeve M. The latter is mounted on theworm-shaft so as to be capable of lengthwise movement thereon and iscoupled ter is now driven.

as to drive the shaftfor instance, by a key a, secured to thecoupling-sleeve and projecting into a groove a in the shaft. The pinionis shifted on the worm-shaft by any suit able mechanism-for instance, bya handlever O at the front of the machine, which is connected by a rod 0with a collar 0 embracing the pinion. The driving-sleeve M is shifted bya similar mechanism for instance, a lever P, which is connected by arod 1) with a-collar p, embracing the sleeve. The pinion-lever O is heldin its adjusted position by a notched bar or segment Q or other suitablemeans, and the sleeve-lever P is held away from the pinion-lever O by aspring 12 The latter tends to move the sleeve forwardly and to hold itin engagement with the pinion.

When the pinion L meshes with one of the concentric gear-faces of thedisk-wheel F, as shown in Figs. 2 and 3, it is held in position by thelever O and notched bar Q, the clutchface of the driving-sleeve M isheld in engagement with the clutch-face of the pinion by the spring, andthe worm-shaft is rotated. When it is desired to change the position ofthe pinion for changing the rate of feed, the sleeve-lever P is pressedtoward the pinionlever 0, whereby the driving or coupling sleeve isdisengaged from the pinion, leaving the latter free to turn on theshaft, as represented in Fig. 4:. The pinion-lever is now unlocked fromthe notched bar Q and moved on the shaft to the desired position. Thesleeve-lever can take part in this movement, but holds the sleeve so farfrom the pinion that these parts remain uncoupled. In effecting thismovement the pinion may strike with one or more of its teeth against theends of the teeth of the gear-face with which the pinion is desired tobe engaged. This is, however, unobjectionable, as there is no load onthe pinion. As soon as the teeth of the pinion register with the spacesbetween the teeth on the gear-face the teeth of the pinion (one or more)enter between the teeth of the gear-face. This movementis performedwithout any particular strain on the parts, because there is no load onthe pinion. When the latter has been so engaged with the appropriategear-face, the pinion-lever O is locked on the notched bar Q, and thelever P is released. The spring now moves the coupling-sleeve againstthe pinion, so as to engage their clutch-faces, whereby the pinion iscoupled to the worm-shaft and the lat- By this means the pinion can beshifted and engaged with different gear-faces without danger of injuringthe parts,- although the position of the diskwheel is not changed duringthis operation and without requiring much pressure to be exerted againstthe pinion by the operator.

I claim as my invention 1. The combination of awheel having gearfaces ofdifferent diameters, a shaft, a pinion mounted to turn loosely on saidshaft and capable of longitudinal movement thereon for engagement witheither of said gear-faces, a driving sleeve capable of lengthwisemovement on said shaft and connected therewith by a driving device, andmeans for coupling said pinion to said driving-sleeve, substantially asset forth.

2. The combination of a wheel having gearfaces of different diameters, ashaft, a pinion mounted to turn loosely on said shaft and capable oflongitudinal movement thereon for engagement with either of saidgear-faces, a driving-sleeve capable of lengthwise movement on saidshaft and connected therewith by a driving device, means for couplingsaid pinion to said driving-sleeve, and devices for independently movingand locking said pinion and driving-sleeve, substantially as set forth.

3. The combination of a wheel having gearfaces of different diameters, ashaft, a pinion mounted to turn loosely on said shaft and capable oflongitudinal movement thereon for engagement with either of saidgear-faces, a driving-sleeve capable of lengthwise move' ment on saidshaft and connected therewith by a driving device, said pinion andsleeve being provided at their adjacent ends with clutchfaces,substantially as set forth.

4. The combination of a driving gear-wheel having gear-faces ofdifferent diameters, a shaft provided at its rear end with a worm, apinion mounted on the front portion of said shaft to turn looselythereon and capable of longitudinal movement on said shaft forengagement with either of said gear-faces, a driving-sleeve arranged onsaid shaft in rear of said pinion, said sleeve being capable oflongitudinal movement on said shaft and connected therewith by a drivingdevice, means for coupling said pinion and sleeve and a wormwheel andfeed device driven by said worm, substantially as set forth.

5. The combination of a wheel having gearfaces of different diameters, ashaft, a pinion mounted to turn loosely on said shaft and capable oflengthwise movement thereon for engagement with either of saidgear-faces, a driving-sleeve capable of longitudinal movement on saidshaft and connected therewith by a driving device, means for couplingsaid engagement with either of said gear-faces, a sleeve in engagementwith said pinion, subdriving-sleeve capable of longitudinalmovestantially as set forth. I0 ment on said shaft and connectedtherewith Witness my hand this 3d day of August, by a driving device,means for coupling said 1903.

pinion and sleeve, a shifting-lever connected JOSEPH SARGENT KEMP. withsaid pinion, means for locking said lever Witnesses: in position, ashifting-lever connected with W. B. ELWELL,

said sleeve, and a spring tending to hold said THos. BRICK.

